What are some examples of polymorphism in C++?

What are some examples of polymorphism in C++?

Polymorphism in C++ allows methods to do different things based on the object that it is acting upon. A common example is function overloading and operator overloading.

Can you explain function overloading with an example?

Sure! Function overloading allows you to define multiple functions with the same name but different parameters. For instance, you could have:

void print(int i) {
    std::cout << "Integer: " << i << std::endl;
}

void print(double d) {
    std::cout << "Double: " << d << std::endl;
}

Here, the print function behaves differently based on the type of argument passed.

What about operator overloading?

Operator overloading allows you to redefine the way operators work for user-defined types. For example, you can overload the + operator for a Complex class to add two complex numbers together.

Can you show me a simple example of operator overloading?

Certainly! Here's a simple example:

class Complex {
public:
    float real, imag;
    Complex(float r, float i) : real(r), imag(i) {}
    Complex operator+(const Complex& c) {
        return Complex(real + c.real, imag + c.imag);
    }
};

In this example, the + operator is overloaded to add two Complex objects.